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LOANS AND ALLOWANCE FOR LOAN LOSSES - Summary of Loan Portfolio by Type of Loan (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018 | Mar. 31, 2018 | Dec. 31, 2017
--- | --- | --- | --- | ---
Loans held for investment: |  |  |  |
Total loans | $ 1,655,703 | $ 1,659,535 | $ 1,401,334 |
Deferred loan costs | 466 | 560 |  |
Allowance for loan losses | (15,190) | (14,651) | (13,375) | $ (12,859)
Total net loans | 1,640,979 | 1,645,444 |  |
Commercial and industrial |  |  |  |
Loans held for investment: |  |  |  |
Total loans | 246,176 | 261,779 | 206,308 |
Allowance for loan losses | (1,963) | (1,751) | (1,737) | (1,581)
Construction and development |  |  |  |
Loans held for investment: |  |  |  |
Total loans | 250,852 | 237,503 | 193,909 |
Allowance for loan losses | (2,001) | (1,920) | (1,700) | (1,724)
Commercial real estate |  |  |  |
Loans held for investment: |  |  |  |
Total loans | 581,926 | 582,519 | 450,076 |
Allowance for loan losses | (6,294) | (6,025) | (4,991) | (4,585)
Farmland |  |  |  |
Loans held for investment: |  |  |  |
Total loans | 72,274 | 67,845 | 63,971 |
Allowance for loan losses | (659) | (643) | (606) | (523)
1-4 family residential |  |  |  |
Loans held for investment: |  |  |  |
Total loans | 390,618 | 393,067 | 377,278 |
Allowance for loan losses | (2,870) | (2,868) | (2,867) | (3,022)
Multi-family residential |  |  |  |
Loans held for investment: |  |  |  |
Total loans | 37,430 | 38,386 | 37,992 |
Allowance for loan losses | (575) | (631) | (647) | (629)
Consumer |  |  |  |
Loans held for investment: |  |  |  |
Total loans | 56,158 | 54,777 | 48,982 |
Allowance for loan losses | (617) | (565) | (585) | (602)
Agricultural |  |  |  |
Loans held for investment: |  |  |  |
Total loans | 19,994 | 23,277 | 22,545 |
Allowance for loan losses | (203) | (238) | (233) | (187)
Overdrafts |  |  |  |
Loans held for investment: |  |  |  |
Total loans | 275 | 382 | 273 |
Allowance for loan losses | $ (8) | $ (10) | $ (9) | $ (6)

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